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Constrained simulations of the local Universe with Modified Gravity
Krishna Naidoo, Wojciech A. Hellwing, Maciej Bilicki +3
We present a methodology for constructing modified gravity (MG) constrained simulations of the local Universe using positions and peculiar velocities from the CosmicFlows data set.…
Dark matter solution to the and tensions, and the integrated Sachs-Wolfe void anomaly
Krishna Naidoo, Mariana Jaber, Wojciech A. Hellwing +1
We consider a phenomenological model of dark matter with an equation-of-state that is negative and changing at late times. We show this couples the and tensions…
Euclid: Calibrating photometric redshifts with spectroscopic cross-correlations
K. Naidoo, H. Johnston, B. Joachimi +126
Cosmological constraints from key probes of the Euclid imaging survey rely critically on the accurate determination of the true redshift distributions, , of tomographic redsh…
COWS: A filament finder for Hessian cosmic web identifiers
Simon Pfeifer, Noam I. Libeskind, Yehuda Hoffman +3
The large scale galaxy and matter distribution is often described by means of the cosmic web made up of voids, sheets, filaments and knots. Many different recipes exist for identif…